Comparison

Voice Trainer vs 3T

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Voice Trainer

Features
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The Voice trainer is originally developed for people with a poorly intelligible speech due to Parkinson's disease , but is also suitable for professional speakers and in consultation with a speech therapist for people with another voice or speech disorder. With one dot on the screen, the app provides real time visual feedback on both loudness and pitch of the voice, allowing to see directly which aspect should be adjusted. You can use the app to make it easier to independently practice your speaking technique, but also to check if you speak properly during conversation. Together with your speech therapist you determine the optimal loudness and pitch. In Parkinson's disease or parkinsonism the app is used during speech therapy with the Pitch Limiting Voice Treatment ( PLVT ) , the Dutch method to effectively treat intelligibility problems in Parkinson's patients. The Voice trainer is therefore also called PLVT app. For additional options, the ‘Voice trainer Supplement’ is available.

About

3T

This app offers healthcare professionals tools for managing decontamination events. It provides process guidance, digital traceability, and audit capabilities for logs, users, and devices on a cloud-based platform.

Highlights
  • Process guidance
  • Digital traceability
  • Audit tools
  • Decontamination log management
  • User and device tracking
  • Cloud-based platform
Features
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3T provides healthcare professionals with process guidance, digital traceability and audit tools for decontamination events. Record, manage and review decontamination logs, users and devices in one simple to use, cloud-based platform

Screenshots

Voice Trainer4 screens
3T4 screens

Verdict

The call

The clearest difference is price: 3T at Free against Voice Trainer's $8.99. 3T also leads on in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 4 months). On ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

3T is free to download; Voice Trainer costs $8.99 up front. Voice Trainer sells 1 one-off in-app purchase. 3T asks for nothing beyond the download.

UpkeepUpdate frequency

Voice Trainer ships an update every 4 months, 3T every 6 weeks. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 6 level
Voice Trainer versus 3T: the parameters behind the verdict, then further details
ParameterVoice Trainer3T
Price$8.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15 — better15.6
Further details — not scored
Size25 MB92 MB
Age rating17+4+
DeveloperUniversitair Medisch Centrum St RadboudTristel Solutions Ltd.

In-app purchases

1 purchases

Voice Trainer

One-time1
  • Voice trainer Supplement$17.99
None

3T

No in-app purchases

Questions

Is Voice Trainer free?
Voice Trainer costs $8.99, and also offers in-app purchases.
Is 3T free?
3T is free to download, with no in-app purchases.
Do Voice Trainer or 3T have ads?
Neither Voice Trainer nor 3T shows ads.
Which is updated more often, Voice Trainer or 3T?
Voice Trainer ships an update every 4 months, and 3T every 6 weeks. Most recently, Voice Trainer was updated on October 7, 2026 and 3T on October 1, 2026.

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